生态农业知识中心

效率:创新型生态农业方法用更少的外部资源带来更高的产出

提升资源利用效率是生态农业系统的一项新属性,通过仔细规划和管理多样性,在系统各构成部分之间形成协同效应。比如,效率方面的一项关键挑战在于全球农田中施用的氮肥仅有不到50%转化为收获产品,其余部分损失在环境中,导致严重的环境问题。

生态农业系统改善对自然资源,尤其是丰富和免费资源的利用,如太阳辐射、大气中的碳和氮元素等。通过促进生物过程以及生物质、营养素和水的循环使用,生产者能够用更少的外部资源,降低成本并减轻资源利用所产生的负面环境影响。最终,减少对外部资源的依赖能够通过提升生产者的自主能力和应对自然或经济冲击的抵御力来赋予其权能。

衡量综合性系统效率的一种方法是土地当量比。土地当量比对比了两种或以上品种(如作物、林木、家畜)共同种养时的单产以及通过单作实现的单产水平。综合性系统往往展示出更高的土地当量比。

因此,生态农业通过必要的生物、社会经济和机构多样性,以及与时空的匹配来推动农业系统,支持提高效率。

 

Database

The High-Level Virtual Event “Scaling up Agroecology Initiative” held on Tuesday 19 April 2022 aimed at sharing the main achievements in the implementation of Agroecology since the launch of the initiative. The event brought together over 650 participants who learned about success stories and the enabling environment that takes agroecology...
India - Mexico - Senegal
会议文件
2022
A journey in "Le Conche", farm of the young Calabrian farmer Vincenzo Sposato: his passion for the job, the relationship with the family, friendship and his future plans. The story focuses on the innovations brought by Vincenzo who having inherited a traditional olive trees farm,  in a few years turned...
Italy
视频
2012
This paper presents four main findings and key recommendations of a dialogue that explored the role of agroecology in increasing resilience to Agri input scarcity in the context of the current global food crisis. It aims to support and feed into the Coalition for food systems transformation through Agroecology (Agroecology Coalition)...
政策简报
2023
Seminar Recording | 06 July 2022 | 14:00 CEST Fertilizers are used in agricultural production to improve plant nutrition and enhance plant health and productivity, but since the beginning of 2022 fertilizers prices recorded an additional 30 percent increase because of several factors, including surging input costs, energy price increases, supply disruptions caused by...
活动
2022
A transition to an agriculture based on agroecological principles would provide rural families with significant socioeconomic and environmental benefits. If agroecology has such great potential to feeding the world, why it is not adopted more widely by farmers? Most research analyzing factorsneeded for scaling up agroecology focuses on the social...
杂志文章
2018